The Market Reality: Agility vs Customization
Salesforce is a blank canvas. It can be customized to do literally anything, making it the default for massive enterprises. HubSpot is built for agility and ease of use, favored by fast-growing startups and mid-market teams.
The Outbound Challenge
Neither CRM is built natively for high-volume cold email. If you send cold emails directly from HubSpot or Salesforce, you will ruin your primary domain's reputation. You must use secondary sending tools (like Smartlead or Lemlist) and sync the positive replies back.